Improvement in earth-augers



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improvement in Earth Angers.

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UNITED STATES PATENT OFFICE.,v

BENJAMIN F. WHITE AND SILAS R. OWEN, OF STEWARTSVILLE, MISSOURI.

IMPROVEMENT IN EARTH-AUGERS.

Specification forming part of Letters Patent No. 123,755, dated February13, 1872.

T0 all whom 'it may concern:

Be it known that we, BENJ. F. WHITE and SILAs R. OWEN, of Stewartsville,in the county of DeKalb and State of Missouri, have invented a new andhvaluable Improvement Vin Earth-Angers; and we do hereby declare thatthe following is afull, clear, and exact description of the constructionand operation of the same, reference being had to the annexed drawingmaking a part of this specification and to the letters and figures ofreference marked thereon.

Figure l of the drawing is a representation of a front view of ourinvention. Fig. 2 is a bottom view. Fig. 3 is a detached view; Fig. 4,central vertical section of sand-pump connected with our auger.

This invention has relation to earth-boring angers; and consists chie-dyin the construction and arrangement of devices for raising and loweringthe air-pipe, and in adapting the auger to sand-boring.

In the accompanying drawing', A represents a strong steel tube, open onone side, and provided with an auger-bit, B, at its lower end. C is avertical sleeve or tube arranged at one side `of the bit, through one ofthe wings 'of which it passes. D represents a strong strap securelyattached t0 the upper end of the tube A, and provided with a pair ofvertically-slotted ears, D', which hold the transverse coupling-pin e ofthe auger-shaft E, and

is slotted at f, to the upper end of the tube, marked G, which passesthrough the strap D, thence through the interior of the tube A, and intothe sleeve C. The air-tube G is open at its upper end and closed at itslower; but a small aperture, g, is made a short distance from its lowerend in one side to serve as an air-outlet.

The vertical motion of the auger-shaft alternately raises and lowersthis tube through the medium of the arm F, which is pivoted to astandard, F', on the upper side of a strap D. Every upward motion of theauger-shaft depresses the air-tube and allows the air to escape from theoutlet g underneath the bit, thereby assisting the withdrawal of theauger from the well. The alternate sinking movement of the shaft raisesthe air-tube, inclosing the aperture q within the sleeve C, and thusprevents the earth from Vgetting into and hindering the operation of thetubes.

I indicates a link, which depends from the pin' e, and is coupled to theend of a bell-crank or elbow-lever, I'. The latter is pivoted to oneside of the strap D, and is furnished on its outer end with acutting-tool, J. The pressure of the auger-shaft operates the lever I',and causes the cutting-tool to swing out and cut away the bore of thewell all around, and

vvalves, n, with a loop, n', to prevent their overlapping. This bucketis designed for usein connection with the tube G and operating devices,and in lieu of the tubeA and auger-bit. Its use is confined to sandworking or other soft material of a similar character. A hole is madethrough one of the valves a, and a socket or sleevefinserted to hold theend of the air-pipe.

We claim as our inventionl. In an earth-auger or sand-bucket, theautomatic air-tube G, operated by the vertical play of the shaft E,substantially as specified.

2. The combination with a well-auger or sand-bucket, of the strap Dprovided with the slotted ears D', the arm' F, air-pipe G,`and shaft F,substantially as specied. v

3. The combination, with a well-auger having the vertically-movableshaft E, of the link I, bell-crank I', and the projecting and retractingtool J, substantially as specified.

In testimony that we claim the above we have hereunto subscribed ournames in the presence of two witnesses.

BENJAMIN F. WHITE. Witnesses: SILAS R. OWEN.

A. J. EVANS,

W. H. HrKEs.

